Titre :

Linear transport infrastructure as a relay for soil biodiversity

Auteur(s) :

Pernin, Celine [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Demuynck, Sylvain [Auteur]
Duvivier, Jérémy [Auteur]
Grumiaux, Fabien [Auteur]
Franchomme, Magalie [Auteur]
Territoires, Villes, Environnement & Société - ULR 4477 [TVES]

Titre de la manifestation scientifique :

3rd Global Soil Biodiversity conférence

Ville :

Dublin

Pays :

Irlande

Date de début de la manifestation scientifique :

2023-03-13

Mot(s)-clé(s) en anglais :

linear transportation infrastructures, animal populations, soil fauna, electric pylons, management modalities, carabid beetles

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Biodiversité/Systématique, phylogénie et taxonomie
Environmental Sciences/Environment and Society
Sciences de l'environnement/Milieux et Changements globaux

Résumé en anglais : [en]

Aim: Several studies have highlighted the impact of linear transportation infrastructures on the flows of certain animal populations. These infrastructures have important ecological impacts on the environment, as they ...
Lire la suite >Aim: Several studies have highlighted the impact of linear transportation infrastructures on the flows of certain animal populations. These infrastructures have important ecological impacts on the environment, as they contribute to the parcelling out of habitats of organisms. However, they can also represent refuges in uniform landscapes, particularly for the soil fauna. This study is particularly interested in the infrastructure of energy transport via the electric pylons.Method: Three management modalities under pylons were studied: conventional agriculture, grazed meadows and unmanaged. Five pylons distributed on 2 sites in the north of France, Rhuminghem and Bailleul, were monitored. This monitoring focused on the meso (springtails) and macrofaunal (woodlice, ground beetles and earthworms) communities of the soil. The sampling was done under the pylon and at 5 and 15 m from the pylon.Results: No significant refuge effect is visible for carabid beetles, which prefer open environments, adapted to their way of life. The distribution of carabid beetles is little affected and seems to be homogeneous on the cultivated plots. Similarly, the vegetation under the pylons does not seem to influence their presence either. The only evidence in favor of this refuge effect is the greater abundance of woolouse and worms under pylons in fallow areas compared to adjacent cultivated plots.Conclusion: The pylons monitored did not show an overall positive effect on the abundance and composition of edaphic communities. The effects are punctual and limited to 1 or 2 taxa (collembola, woodlouse). No influence on the most mobile taxa was observed.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Territoires, Villes, Environnement & Société (TVES) - ULR 4477

Source :

Harvested from HAL